/*
 * Copyright (c) 2008-2012, Hazel Bilisim Ltd. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.hazelcast.impl.executor;

import com.hazelcast.logging.ILogger;
import com.hazelcast.logging.StandardLoggerFactory;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;

import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

@RunWith(com.hazelcast.util.RandomBlockJUnit4ClassRunner.class)
public class ParallelExecutorServiceImplTest {

    private ThreadPoolExecutor executorService;
    private ParallelExecutorService parallelExecutorService;

    @Before
    public void setUp() {
        ILogger logger = new StandardLoggerFactory().getLogger(ParallelExecutorServiceImplStressTest.class.getName());
        executorService = new ThreadPoolExecutor(10, 10, 0, TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>());
        parallelExecutorService = new ParallelExecutorService(logger, executorService);
    }

    @After
    public void tearDown() throws InterruptedException {
        executorService.shutdownNow();
        assertTrue("ExecutorService failed to terminate within timeout window", executorService.awaitTermination(10, TimeUnit.SECONDS));
    }

    @Test
    public void testExecuteWithIllegalArguments() {
        ParallelExecutor executor = parallelExecutorService.newParallelExecutor(2);
        try {
            executor.execute(null);
            fail();
        } catch (NullPointerException expected) {
        }
        try {
            executor.execute(null, 1);
            fail();
        } catch (NullPointerException expected) {
        }
    }
}